JP2017200731A - Recording device - Google Patents

Abstract

A printing apparatus using a common part in a plurality of types of printing apparatuses of different types of recording heads is provided. A printer includes a recording head, a discharge driving roller that is provided on the downstream side of the recording head in a conveyance path of the paper, and is driven to rotate by a driving source, and the discharge driving roller. The discharge driven roller 16 that is driven to rotate in contact with the recording surface of the medium, and is positioned between the discharge driven roller 16 and the recording head 8 in the transport path and is in contact with the recording surface of the paper P to regulate the floating of the paper P. And a holder 30 that supports the discharge driven roller 16 and the restriction roller 18. The holder 30 can change the support position of the restriction roller 18 relative to the support position of the discharge driven roller 16 in the transport direction. It is configured. [Selection] Figure 2

Description

  The present invention relates to a recording apparatus that performs recording on a medium.

In an inkjet printer as an example of a recording apparatus, a recording head that performs recording on a medium, a pair of conveyance rollers that are provided on the upstream side of the recording head, and that conveys the medium, and a downstream side of the recording head, Some have a pair of discharge rollers for discharging the recorded paper. Each of the transport roller pair and the discharge roller pair includes a drive roller that is rotationally driven by a drive source, and a driven roller that is driven to rotate by the drive roller.
In addition, there may be a restricting portion for suppressing the floating of the conveyed paper on the upstream side of the discharge roller pair (for example, Patent Document 1 and Patent Document 2).

In Patent Document 1, a regulating unit 32 that suppresses the floating of the conveyed paper is provided upstream of the discharge roller pair configured by the discharge drive roller 19 and the discharge driven roller 20 disposed on the upper side of the discharge drive roller 19. It is formed on a holding member (tube support member 31) that holds the discharge driven roller 20.

Further, in Patent Document 2, a regulating roller 29 that rotates following the medium being conveyed is provided as the regulating portion that suppresses the floating of the paper.
The restricting portion (the restricting portion 32 in Patent Document 1 and the restricting roller 29 in Patent Document 2) suppresses the trailing end of the conveyed medium from floating, so that the downstream end of the recording head in the medium conveying direction. It is provided at a position close to the part.

JP2015-98369A Japanese Patent Laying-Open No. 2015-199597

In recent years, with the widespread use of printers, users have been required to reduce the cost of products. For this reason, it is conceivable to reduce the product cost by sharing parts in a plurality of printer models.

In a plurality of types of printers, there are cases where the type of recording head is changed when there is a difference in performance for each printer.
When the type of the recording head is changed, it may be necessary to change the position of the restricting portion set according to the relationship with the position of the downstream end of the recording head.

Here, as in Patent Document 1, when the discharge driven roller 20 and the restriction portion 32 are provided in the same holding member (tube support member 31), in order to change the position of the restriction portion, the following There are two ways.
First, as a first method, it is conceivable to prepare the holding member individually corresponding to the type of the recording head without moving the position of the discharge driven roller 20. In this case, the cost required for designing a plurality of types of holding members, manufacturing parts, and the like increases.

As a second method, it is conceivable to use the same holding member and shift the position of the restricting portion 32. In this case, it is necessary to change the position of the discharge driven roller 20 attached to the same holding member, and also to change the position of the opposite discharge drive roller 19. That is, the positions of the discharge roller pair (discharge driving roller 19 and discharge driven roller 20) are changed.
If the distance between the pair of transport rollers provided on the upstream side of the recording head and the pair of discharge rollers changes due to the change of the position of the discharge roller pair, it is necessary to redesign the transmission system related to the drive roller or to change parts. In addition, since the paper posture on the platen changes, it is necessary to re-evaluate various conditions such as dot landing accuracy and head rubbing of the recording head. Therefore, development man-hours and costs are required.

  Accordingly, an object of the present invention is to provide a cheaper recording apparatus using common parts in a plurality of types of recording apparatuses having different types of recording heads.

  In order to solve the above-described problem, a recording apparatus according to a first aspect of the present invention includes a recording head that performs recording on a medium, and is provided on a downstream side of the recording head in a conveyance path of the medium, and is rotationally driven by a drive source A discharge driving roller, a discharge driven roller that is disposed opposite to the discharge drive roller and is driven to rotate in contact with the recording surface of the medium, and is positioned between the discharge driven roller and the recording head in the transport path, A regulating member that contacts the recording surface of the medium and regulates the floating of the medium; and a supporting member that supports the ejection driven roller and the regulating member, and the supporting member is configured to eject the ejection in the medium conveying direction. The support position of the restricting member relative to the support position of the driven roller is configured to be changeable.

  According to this aspect, the support member that supports the discharge driven roller and the restriction member is configured to be able to change the support position of the restriction member relative to the support position of the discharge follower roller in the medium transport direction. For example, when the recording head is changed to a different type, the position of the downstream end of the recording head changes, and the position of the regulating member needs to be changed. The position of the restricting member can be changed.

Further, since the position of the restricting member can be changed without changing the position of the discharge driven roller, a transport roller pair and a discharge roller pair (discharge driving roller and discharge driven roller) provided on the upstream side of the recording head The distance between and does not change. Therefore, it is possible to avoid an increase in development man-hours and costs due to a change in the distance between the conveyance roller pair and the discharge roller pair.
As described above, the support member enables common parts in a plurality of types of recording apparatuses with different types of recording heads, thereby reducing the cost of manufacturing parts and assembling parts or reducing the number of design steps. It becomes.

  A recording apparatus according to a second aspect of the present invention includes a recording head that performs recording on a medium, a discharge driving roller that is provided on the downstream side of the recording head in a conveyance path of the medium, and is driven to rotate by a driving source. A discharge driven roller disposed opposite to the discharge driving roller and driven to rotate in contact with the recording surface of the medium, and positioned between the discharge driven roller and the recording head in the conveyance path, and in contact with the recording surface of the medium And a support member that supports the discharge driven roller and the control member, and the support member is upstream of the support position of the discharge driven roller in the medium transport direction. The position of the side end portion is configured to be changeable.

According to this aspect, since the support member is configured to be able to change the position of the upstream end with respect to the support position of the discharge driven roller in the medium transport direction, the recording head is changed to a different type. In this case, the position of the upstream end relative to the support position of the discharge driven roller can be changed to a position corresponding to the size of the recording head to be attached.
This makes it possible to share parts in a plurality of types of recording apparatuses having different types of recording heads, thereby reducing the cost of manufacturing parts and assembling parts or reducing the number of design steps.

  In the recording apparatus according to a third aspect of the present invention, in the first aspect or the second aspect, the support member includes a first support member on which the discharge driven roller is provided, and a second member on which the restriction member is provided. A support member, wherein the second support member is configured to be slidable in the medium transport direction with respect to the first support member.

  According to this aspect, in the support member, the second support member is slid in the medium transport direction relative to the first support member, and the support position of the restriction member relative to the support position of the discharge driven roller, or The position of the upstream end with respect to the support position of the discharge driven roller can be changed.

  In the recording apparatus according to a fourth aspect of the present invention, in the first aspect or the second aspect, in the support member, the discharge driven roller is supported at a position shifted from a central portion in the medium conveyance direction. The regulating member supporting portion capable of supporting the regulating member has a first end side having a long distance from the support position of the discharge driven roller and a second end side having a short distance from the support position of the discharge driven roller. And is provided in.

  According to this aspect, the support of the discharge driven roller is changed by changing the direction of the support member between the direction in which the first end side is the upstream side and the direction in which the second end side is the upstream side. The position of the upstream end portion relative to the position of the regulating member relative to the position or the position of supporting the discharge driven roller can be switched.

  The recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to the first aspect or the second aspect, wherein the support member is provided on one end side and supports the restriction member; A first roller support portion provided at a position away from the restriction member support portion on the other end side and capable of supporting the discharge driven roller, and provided between the restriction member support portion and the first roller support portion. And a second roller support portion capable of supporting the discharge driven roller.

  According to this aspect, by changing the support position of the discharge driven roller in the support member, the upstream end with respect to the support position of the restriction member relative to the support position of the discharge driven roller or the support position of the discharge driven roller The position of the part can be switched.

1 is a schematic sectional view of a printer according to Embodiment 1. FIG. The figure explaining the change of the support position of the control roller with respect to the discharge driven roller in the holder which concerns on Example 1, and the position of the upstream edge part of a holder. The perspective view of the holder in the upper figure of FIG. The perspective view of the holder in the lower figure of FIG. The figure explaining the change of the support position of the control roller with respect to the discharge driven roller in the holder which concerns on Example 2, and the position of the upstream edge part of a holder. The perspective view of the holder in the upper figure of FIG. The perspective view of the holder in the lower figure of FIG. The figure explaining the change of the support position of the control roller with respect to the discharge driven roller and the position of the upstream end of the holder in the holder according to the third embodiment. The perspective view of the holder in the upper figure of FIG. The perspective view of the holder in the lower figure of FIG.

[Example 1]
As an example of the recording apparatus according to the present invention, an ink jet printer is taken as an example. Hereinafter, an outline of the inkjet printer 1 (hereinafter referred to as the printer 1) will be described. FIG. 1 is a schematic cross-sectional view of the printer according to the first embodiment. FIG. 2 is a diagram illustrating a change in the support position of the restriction roller with respect to the discharge driven roller and the position of the upstream end of the holder in the holder according to the first embodiment. FIG. 3 is a perspective view of the holder in the upper view of FIG. FIG. 4 is a perspective view of the holder in the lower view of FIG.

In the XYZ coordinate system shown in each figure, the X direction is the width direction of the recording apparatus and the scanning direction of the recording head. The Y direction is the depth direction of the recording apparatus, and is the conveyance direction of the paper P as a medium. The Z direction is the direction of gravity and indicates the height direction of the recording apparatus.
Further, the + Y direction is the front side of the apparatus, and the −Y direction side is the back side of the apparatus. Further, the + Z direction is referred to as the upper side (including the upper part and the upper surface), and the −Z direction is referred to as the lower side (including the lower part and the lower surface).
In the printer 1, the paper P as a medium is transported in the + Y direction in FIG. The direction in which the paper P is conveyed in the printer 1 is referred to as “downstream”, and the opposite direction is referred to as “upstream”.

<Printer overview>
First, an outline of the printer 1 will be described with reference to FIG. In FIG. 1, a conveyance path (broken line) of the paper P is shown.
The printer 1 includes a casing 2 that constitutes the main body of the printer 1, and a medium setting unit 3 on which a plurality of sheets P can be set is provided on the back side (−Y direction side) of the casing 2. . The medium setting unit 3 includes a hopper 4 as an example of a “medium support member”, and a part of the front side of the paper P is supported in an inclined posture on a support surface 4 a of the hopper 4.
Further, on the upstream side of the hopper 4 in the paper conveyance direction, a paper support 5 is provided as a support member that supports the rear end side of the paper P that is not supported by the hopper 4.

The hopper 4 is provided so that the support surface 4 a of the paper P can swing with respect to the feeding roller 7 about the swing shaft 6 extending in the X-axis direction on the upstream side in the medium transport direction. At the same time, it is biased toward the feeding roller 7 by a biasing means (not shown).
In other words, the hopper 4 has a feeding state in which the supported paper P is brought into contact with the feeding roller 7 (the state of the hopper 4 indicated by a one-dot chain line in FIG. 1) and a non-feeding state in which the supported paper P is separated from the feeding roller 7. The feeding state (the state of the hopper 4 shown by a solid line in FIG. 1) can be switched, and is urged toward the feeding state.

A plurality of sheets P set in the hopper 4 are brought into contact with the feeding roller 7 and the uppermost sheet P is picked up one by one by the rotation of the feeding roller 7 and sent downstream in the conveying direction.
The paper P sent from the upstream side in the transport direction is fed to the recording head 8 by a transport unit 11 including a transport drive roller 9 driven by a drive source 26 and a transport driven roller 10 driven to rotate by the transport drive roller 9. Is conveyed to a recording position below.

  The recording head 8 is provided on the carriage 12. The carriage 12 is mounted with an ink cartridge 13 for supplying ink to the recording head 8, receives power from a motor (not shown), and intersects with the conveyance direction (+ Y direction) of the paper P, that is, the paper width. Reciprocates in the direction (X-axis direction).

  A platen 14 that defines a gap between the ink ejection surface of the recording head 8 and the paper P is provided below the recording head 8 so as to face the recording head 8. Recording is performed between the recording head 8 and the platen 14 by ejecting ink from the recording head 8 onto a medium such as paper P.

In the conveyance path, on the downstream side of the recording head 8, a discharge driving roller 15 that is rotationally driven by a drive source 26, and a discharge driven roller that is disposed opposite to the discharge driving roller 15 and rotates in contact with the recording surface of the paper P. 16 is provided.
In the printer 1, the drive source 26 of the discharge drive roller 15 is shared with the transport drive roller 9 described above. The power applied to the transport drive roller 9 is transmitted to the discharge drive roller 15 via a power transmission device (not shown). The power transmission device can be constituted by, for example, a gear train. Of course, the power sources of the transport drive roller 9 and the discharge drive roller 15 can be provided separately.

The paper P after recording is discharged from the paper discharge port 19 formed on the front surface of the apparatus toward the front of the apparatus by the discharge means 17.
It should be noted that the upstream side of the discharge driven roller 16 is positioned between the discharge driven roller 16 and the recording head 8 in the conveyance path of the paper P and is in contact with the recording surface of the paper P to restrict the floating of the paper P. A regulating roller 18 as a “member” is provided.
In this embodiment, the discharge driven roller 16 and the regulation roller 18 are supported by the same support member (a holder 30 described later). The support structure of the discharge driven roller 16 and the regulating roller 18 in the holder 30 will be described in detail later.

Further, the printer 1 includes a paper P reversing mechanism 20 and is configured to perform recording on both sides of the paper P.
The reversing mechanism 20 is located on the back side of the support surface 4a of the hopper 4, and a reversing roller 22 that reverses the paper P recorded by the recording head 8, and a plurality of revolving mechanisms 22 that are energized and driven by the reversing roller 22. The driven roller (the 1st driven roller 23, the 2nd driven roller 24, and the 3rd driven roller 25) is provided.

  When recording is performed on both sides of the paper P in the printer 1, the recording is performed on the first surface of the paper P by the recording head 8, and then the paper P is transported by the transport unit 11 and the discharge unit 17 by the reverse feeding operation. When recording is performed on one side, the side that was the trailing edge of the sheet becomes the leading edge and is returned to the upstream side of the conveying means 11. Further, the sheet P is sent from the portion indicated by the arrow A to the reversing path 21 by the reverse operation of the transport unit 11. The sheet P sent into the reversing path 21 is nipped by the reversing roller 22 and each of the first driven roller 23, the second driven roller 24, and the third driven roller 25, and proceeds along the reversing path 21. The portion shown is returned to the paper conveyance path.

  The paper P returned to the paper transport path is sent again by the feed roller 7 to the transport means 11 on the downstream side of the paper transport path, and is sent below the recording head 8 by the transport means 11. At this time, the second surface (back surface of the first surface) of the sheet P reversed by the reversing mechanism 20 faces the recording head 8. The paper P on which the recording on the second surface has been performed by the recording head 8 is discharged from the paper discharge port 19 by the discharge means 17.

<About the holder that supports the discharge driven roller and the regulation roller>
Next, the support structure of the holder 30 and the discharge driven roller 16 and the regulating roller 18 in the holder 30 will be described with reference to FIGS. As described above, the holder 30 is a support member that supports the discharge driven roller 16 and the regulation roller 18.
In the present embodiment, the holder 30 is configured to be able to change the support position of the restriction roller 18 with respect to the support position of the discharge driven roller 16 in the medium transport direction.

  In the present embodiment, the holder 30 is configured to be able to change the position of the upstream end 35 relative to the support position of the discharge driven roller 16 in the transport direction of the paper P.

  More specifically, the holder 30 includes a first support member 31 on which the discharge driven roller 16 is provided, and a second support member 32 on which the regulation roller 18 is provided, and the second support member 32 is a first support. The member 31 is configured to be slidable in the paper conveyance direction.

The first support member 31 is provided with a plurality of first mounting holes 33 provided at intervals in the X-axis direction intersecting the transport direction of the paper P. The first mounting hole 33 receives the rotation shaft 16 a of the discharge driven roller 16, and the discharge driven roller 16 is rotatably supported by the first support member 31.
The second support member 32 is provided with a plurality of second mounting holes 34 provided at intervals in the X-axis direction that intersects the paper transport direction.

The first support member 31 is provided with a first through hole 36 (FIG. 2), and the second support member 32 is provided with a second through hole 37 formed in a long hole in the paper transport direction. Yes.
The first support member 31 and the second support member 32 are fixed to each other by a mounting screw 39 that is inserted into the first through hole 36 and the second through hole 37 and fastened.

Since the second through hole 37 of the second support member 32 is formed as a long hole, the second support member 32 can be slid in the paper transport direction (Y-axis direction) with respect to the first support member 31. Accordingly, the support position of the regulating roller 18 with respect to the support position of the discharge driven roller 16 or the position of the upstream side end portion 35 with respect to the support position of the discharge follower roller 16 can be changed.
The first support member 31 is fixed to other constituent members such as a frame provided in the housing 2 by fixing screws 27 (FIGS. 3 and 4).

As described above, the holder 30 that supports the discharge driven roller 16 and the regulation roller 18 has the support end position of the regulation roller 18 with respect to the support position of the discharge follower roller 16 or the upstream end 35 with respect to the support position of the discharge follower roller 16. Since the position of can be changed, the following effects can be obtained.
That is, when it is necessary to change the position of the restriction roller 18, the position of the restriction roller 18 can be changed with the same holder 30.

For example, when the specification of the recording head 8 is changed in the printer 1, the position of the downstream end of the recording head 8 may change. The recording head 8a (upper view in FIG. 2) and the recording head 8b (lower view in FIG. 2) having different specifications will be described with reference to FIG.
The position of the downstream end 38a of the recording head 8a shown in the upper diagram of FIG. 2 is on the upstream side (−Y side) than the position of the downstream end 38b of the recording head 8b shown in the lower diagram of FIG.

When the recording head 8 a is attached in the printer 1, the holder 30 abuts the attachment screw 39 on the downstream end 37 a (FIGS. 4 and 2) of the second through hole 37 (long hole) in the second support member 32. Thus, the first support member 31 and the second support member 32 are fixed. At this time, the upstream end 35 of the holder 30 is located at a position C indicated by a one-dot chain line in FIG.
2 and 3 show the state in which the support position of the regulating roller 18 with respect to the discharge driven roller 16 and the position of the upstream end 35 of the holder 30 are on the most upstream side in the holder 30. FIG. .

  If the specification is changed from the recording head 8a to the recording head 8b, the upstream end 35 of the recording head 8b interferes with the downstream end 38b of the holder 30 corresponding to the recording head 8a. Further, the appropriate position of the regulating roller 18 with respect to the recording head 8b is also on the downstream side with respect to the recording head 8a.

Therefore, when changing to the recording head 8b, the second support member 32 is slid to the downstream side with respect to the first support member 31, and the positions of the upstream end portion 35 of the regulation roller 18 and the holder 30 are set to the downstream side. Move to. Specifically, the holder 30 is in a state in which the mounting screw 39 is in contact with the upstream end 37b (FIGS. 2 and 3) of the second through hole 37 (long hole) in the second support member 32. Thus, the first support member 31 and the second support member 32 are fixed. At this time, the upstream end 35 of the holder 30 is at a position D indicated by a one-dot chain line in FIG.
2 and 4 show a state in which the support position of the regulating roller 18 with respect to the discharge driven roller 16 and the position of the upstream end 35 of the holder 30 are on the most downstream side in the holder 30. FIG.

  In this manner, even when the position of the downstream end (38a, 38b) of the recording head 8 changes when the recording head 8 is changed to one having a different specification (recording head 8a or recording head 8b), the same holder 30 is used. Can be used to change the support position of the regulating roller 18 or the position of the upstream end 35 of the holder 30.

Further, since the holder 30 is configured to be able to change the support position of the regulating roller 18 with respect to the support position G (FIG. 2) of the discharge driven roller 16 or the position of the upstream end 35, the position of the discharge driven roller 16. The position of the regulating roller 18 can be changed without changing the position. That is, the distance F (FIG. 2) between the conveying means 11 and the discharging means 17 provided on the upstream side of the recording head 8 does not change. In the present embodiment, a power transmission device using a toothed wheel train is provided between the transport drive roller 9 and the discharge drive roller 15, and the drive source 26 for the transport drive roller 9 and the discharge drive roller 15 is shared, so that the transport means When the distance F between 11 and the discharge means 17 changes, it is necessary to change the design of the tooth wheel train.
However, by using the holder 30, it is possible to avoid an increase in development man-hours and costs due to a change in the distance F between the transport unit 11 and the discharge unit 17.

  The holder 30 enables parts to be shared in a plurality of types of printers having different types and specifications of the recording head 8, thereby reducing the cost of manufacturing parts and assembling parts or reducing the number of design steps.

  Further, since the holder 30 is configured to be slidable in the paper transport direction with respect to the first support member 31 including the discharge driven roller 16, the holder 30 is configured to slide the discharge support roller 16. The support position of the restriction roller 18 with respect to the support position G or the position of the upstream end 35 can be easily changed.

Note that the position of the second support member 32 relative to the first support member 31 in the transport direction can be changed within a range in which the upstream end portion 35 of the holder 30 is located in the region E shown in FIG. The length of the region E corresponds to the length of the long hole as the second through hole 37 of the second support member 32 in the longitudinal direction.
The second support member can be slid with respect to the first support member 31 so that the position of the upstream end portion 35 of the holder 30 can be set to an arbitrary position in the region E. Positioning portions for positioning the position of the second support member 32 relative to the first support member 31 may be provided in the first support member 31 and the second support member 32. For example, a plurality of positioning recesses arranged in the transport direction are provided on the upper surface of the first support member 31, and the positioning protrusions provided on the lower surface of the second support member 32 are any of the plurality of positioning recesses arranged in the transport direction. The position of the second support member 32 with respect to the first support member 31 in the transport direction can be determined by fitting in.

  Further, the change of the position of the regulating roller 18 with respect to the discharge driven roller 16 is not limited to the case where the specification of the recording head 8 is changed. For example, in the manufacturing process of the printer of the same model, the position of the regulating roller 18 can be adjusted when the appropriate position of the regulating roller 18 changes due to individual differences. Further, if the rigidity of the paper used in the printer is different, the position of the appropriate regulating roller 18 may change. Even in such a case, the position of the regulating roller 18 can be changed according to the type of paper.

  In this embodiment, the restriction roller 18 is exemplified as the “regulation member” that regulates the floating of the paper P, but the “regulation member” is not limited to the roller shape. For example, a convex member as a “regulating member” may be fixed to the second support member 32 constituting the holder 30. The convex member can be integrally formed with the second support member 32 in addition to the case where the convex member is configured to be detachable from the second support member 32.

[Example 2]
In the second embodiment, another example of a holder that supports the discharge driven roller 16 and the regulation roller 18 will be described with reference to FIGS. FIG. 5 is a diagram illustrating a change in the support position of the restriction roller with respect to the discharge driven roller and the position of the upstream end of the holder in the holder according to the second embodiment. FIG. 6 is a perspective view of the holder in the upper view of FIG. FIG. 7 is a perspective view of the holder in the lower view of FIG.
In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description of the components is omitted.

In the second embodiment, a driven roller support portion 44 is provided at a position shifted from the central portion in the paper transport direction in the holder 40 that supports the discharge driven roller 16 and the regulating roller 18. The discharge driven roller 16 is supported by the driven roller support portion 44.
In the holder 40, the regulating member support portions (43 a, 43 b) that can support the regulating roller 18 have a long distance from the support position G (FIG. 5) of the discharge driven roller 16 and the discharge driven follower. It is provided on the second end 42 side where the distance from the support position G of the roller 16 is short.
5 to 7, the restriction member support portion on the first end portion 41 side is indicated by reference numeral 43 a, and the restriction member support portion on the second end portion 42 side is indicated by reference numeral 43 b.

In the holder 40, the restriction member support part 43a and the restriction member support part 43b are provided in the vicinity of the first end part 41 and the second end part 42, respectively, and the restriction roller support 18 is supported by the restriction member support part 43a. And the distance from the support position G (FIG. 5) of the discharge driven roller 16 is different between the case where the restriction roller 18 is supported by the restriction member support portion 43b.
The holder 40 is fixed to other components such as a frame provided in the housing 2 by fixing screws 45 (FIGS. 6 and 7).

  In the holder 40 configured as described above, the orientation of the holder 40 is such that the first end 41 side is the upstream side (upper view of FIG. 5 and FIG. 6) and the second end 42 side is the upstream side. The orientation of the upstream side of the support position G of the discharge driven roller 16 with respect to the support position G of the discharge driven roller 16 or the support position G of the discharge driven roller 16 The position can be switched.

More specifically, the holder 40 is rotated 180 ° about the Z axis in the drawing as a rotation axis, whereby the distance K from the support position G of the discharge driven roller 16 to the first end 41 and the support of the discharge driven roller 16 are supported. The support position of the regulating roller 18 relative to the support position G of the discharge driven roller 16 or the position of the upstream end of the holder 40 is changed by a distance M that is a difference from the distance L from the position G to the second end 42. be able to.
In the upper view of FIG. 5 and FIG. 6, the first end 41 is the upstream end of the holder 40. At this time, the upstream end of the holder 40 is at a position H indicated by a one-dot chain line in FIG. In the lower view of FIG. 5 and FIG. 7, the second end 42 is the upstream end of the holder 40. At this time, the upstream end portion of the holder 40 is located at a position J indicated by a one-dot chain line in FIG.

  Therefore, as in the first embodiment, it is possible to share parts in a plurality of printers with different types and specifications of the recording head 8, thereby reducing the cost of manufacturing parts and assembling parts, or reducing the number of design steps. Is possible.

[Example 3]
In Example 3, still another example of a holder that supports the discharge driven roller 16 and the regulating roller 18 will be described based on FIGS. 8 to 10. FIG. 8 is a diagram illustrating a change in the support position of the restriction roller with respect to the discharge driven roller and the position of the upstream end of the holder in the holder according to the third embodiment. 9 is a perspective view of the holder in the upper view of FIG. FIG. 10 is a perspective view of the holder in the lower view of FIG.
Also in the present embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and the description of the configurations is omitted.

In the third embodiment, the holder 50 is provided on one end 51 side, and is provided at a position where the restriction member support 52 supports the restriction roller 18 and a position away from the restriction member support 52 toward the other end 53. A second roller support portion 55 provided between the regulating roller support portion 52 and the first roller support portion 54 and capable of supporting the discharge follower roller 16. And.
That is, the mounting position of the discharge driven roller 16 in the holder 50 is changed to switch the relative position of the regulating roller 18 with respect to the discharge driven roller 16 or the end 51 as the upstream end.

The holder 50 is provided with screw holes 57a and 57b for inserting fixing screws 56 (FIGS. 9 and 10) for fixing inside the apparatus main body (housing 2) side by side in the sheet conveying direction. .
In the case where the discharge driven roller 16 is supported by the first roller support portion 54 on the downstream side in the holder 50 (FIG. 9), if the fixing screw 56 is used to fix the discharge driven roller 16 using the screw hole 57a located on the downstream side, FIG. 8, the discharge driven roller 16 is disposed at a position corresponding to the discharge drive roller 15.
Further, when the discharge driven roller 16 is supported by the second roller support portion 55 on the upstream side in the holder 50 (FIG. 10), the fixing screw 56 is used to fix the discharge driven roller 16 using the screw hole 57b located on the upstream side. 8, the discharge driven roller 16 is disposed at a position corresponding to the discharge drive roller 15.

In the holder 50, the support portion of the discharge driven roller 16 is changed to the first roller support portion 54 or the second roller support portion 55, and the holder 50 is placed in the housing 2 at a position where the discharge follow roller 16 corresponds to the discharge drive roller 15. By fixing, the support position of the regulating roller 18 with respect to the support position G of the discharge driven roller 16 or the position of the end portion 51 on the upstream side can be moved by a distance R (FIG. 8).
Accordingly, the support position of the regulating roller 18 with respect to the support position G of the discharge driven roller 16 or the position of the upstream end portion with respect to the support position of the discharge driven roller 16 can be switched.
8 and 9, the upstream end portion of the holder 50 is located at a position N indicated by a one-dot chain line in FIG. 8. In the lower diagram of FIG. 8 and FIG. 10, the upstream end of the holder 50 is at a position Q indicated by a one-dot chain line in FIG. 8. The distance R is a distance from the position N to the position Q.

  Also in this embodiment, in the same manner as in Embodiments 1 and 2, it is possible to share parts in a plurality of types of printers with different types and specifications of the recording head 8 and reduce the cost of parts manufacture and parts assembly. Alternatively, the design man-hour can be reduced.

  In addition, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

DESCRIPTION OF SYMBOLS 1 ... Inkjet printer (recording apparatus), 2 ... Housing | casing, 3 ... Medium set part,
4 ... Hopper, 4a ... Support surface, 5 ... Paper support, 6 ... Oscillating shaft,
7 ... feed roller, 8 ... recording head, 9 ... conveyance drive roller,
10: transport driven roller, 11: transport means, 12: carriage,
13 ... Ink cartridge, 14 ... Platen, 15 ... Discharge drive roller,
16 ... discharge driven roller, 17 ... discharge means, 18 ... regulating roller (regulating member),
19 ... paper discharge port, 20 ... reversing mechanism, 21 ... reversing path, 22 ... reversing roller,
23 ... 1st driven roller, 24 ... 2nd driven roller, 25 ... 3rd driven roller,
26 ... Driving source, 27 ... Fixing screw, 30 ... Holder (support member),
31 ... 1st support member, 32 ... 2nd support member, 33 ... 1st attachment hole, 34 ... 2nd attachment hole,
35 ... upstream end, 36 ... first through hole, 37 ... second through hole, 38 ... downstream end,
39 ... Mounting screw, 40 ... Holder (support member), 41 ... First end, 42 ... Second end,
43a, 43b ... restriction member support, 44 ... driven roller support, 45 ... fixing screw,
50 ... Holder (support member), 51 ... End, 52 ... Restricting member support,
53 ... end, 54 ... first roller support, 55 ... second roller support,
56 ... Fixing screw, 57a, 57b ... Screw hole,
P ... paper

Claims (5)

A recording head for recording on a medium;
A discharge driving roller provided on the downstream side of the recording head in the conveyance path of the medium, and rotated by a driving source;
A discharge driven roller disposed opposite to the discharge drive roller and driven to rotate in contact with the recording surface of the medium;
A regulating member that is positioned between the discharge driven roller and the recording head in the conveyance path, and that regulates the floating of the medium in contact with the recording surface of the medium;
A support member that supports the discharge driven roller and the regulating member;
The support member is configured to be capable of changing a support position of the restriction member with respect to a support position of the discharge driven roller in the medium conveyance direction.
A recording apparatus. A recording head for recording on a medium;
A discharge driving roller provided on the downstream side of the recording head in the conveyance path of the medium, and rotated by a driving source;
A discharge driven roller disposed opposite to the discharge drive roller and driven to rotate in contact with the recording surface of the medium;
A regulating member that is positioned between the discharge driven roller and the recording head in the conveyance path, and that regulates the floating of the medium in contact with the recording surface of the medium;
A support member that supports the discharge driven roller and the regulating member;
The support member is configured to be able to change the position of the upstream end with respect to the support position of the discharge driven roller in the medium conveyance direction.
A recording apparatus. The recording apparatus according to claim 1 or 2,
The support member includes a first support member on which the discharge driven roller is provided, and a second support member on which the restriction member is provided,
The second support member is configured to be slidable in the medium transport direction with respect to the first support member.
A recording apparatus. The recording apparatus according to claim 1 or 2,
In the support member, the discharge driven roller is supported at a position shifted from a central portion in the medium conveyance direction, and a restriction member support portion capable of supporting the restriction member is a distance from a support position of the discharge driven roller. Is provided on the long first end side and on the second end side where the distance from the support position of the discharge driven roller is short,
A recording apparatus. The recording apparatus according to claim 1 or 2,
The support member is provided on one end side, and is provided at a position apart from a restriction member support portion that supports the restriction member, and the other end portion side from the restriction member support portion, and the discharge driven roller A first roller support portion that can be supported, and a second roller support portion that is provided between the restriction member support portion and the first roller support portion and can support the discharge driven roller.
A recording apparatus.

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